Aluminum Water Hose Fitting for N54 335i 335xi 135i 325i 330i 3.0L G20242339626 Features: This product is made from high-strength aerospace aluminum. It is designed to maximize resistance to breakage, providing improved durability compared to the OEM fitting. The coolant flow path through the center of the fitting is optimized to enhance coolant flow. The internal surface area of the flow path is larger than that of OEM components, further improving cooling performance. This hose connects from the coolant thermostat housing to the front of the engine head. The factory plastic fitting on this hose is a known weak point in the cooling system and is prone to cracking and leaking. This aluminum fitting serves as a direct replacement to address these issues, offering a long-lasting solution that resists cracking and leaking. It is a direct fit replacement for the stock plastic fitting with no modifications required. Constructed from high-quality aluminum alloy, this fitting is durable and wear-resistant. Smooth internal contours eliminate sharp edges, allowing coolant to flow without restriction. Built to original equipment specifications to ensure proper fitment and reliable performance. Installation is straightforward: remove the hose end from the original plastic fitting, remove the old fitting from the head, install the new aluminum fitting into the head, then reattach the hose and hose clamp onto the fitting. Specifications: Material: Aluminum Alloy Length: Approx. 4.3 cm (1.69 inches) Color: Silver, Red, Black, Blue Fitment: Compatible with 3 Series N54 335i 335xi 135i 325i 330i 3.0L (OEM Part Number: 11537541992) Note: 1. Please allow 1–2 cm variation due to manual measurement. 2. Actual color may vary slightly due to monitor display differences. Package Includes: 1 x Water Hose Fitting